Instructions at https://docs.moodle.org/27/en/PostgreSQ
psql -U postgres Password for user postgres:I enter command thus
odroid@odroid:/$psql -U postgres
psql: FATAL: Peer authentication failed for user "postgres"
so I tried the root user (what do I know)
odroid@odroid:/$psql -U odroid
psql: FATAL: role "odroid" does not exist
Install did not ask me for a user name, but it did ask for a password. What's the default username?